911222148 has 24 divisors (see below), whose sum is σ = 2161042240. Its totient is φ = 298761120.

The previous prime is 911222141. The next prime is 911222173. The reversal of 911222148 is 841222119.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (911222141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621688 + ... + 623151.

Almost surely, 2^911222148 is an apocalyptic number.

It is an amenable number.

911222148 is an abundant number, since it is smaller than the sum of its proper divisors (1249820092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

911222148 is a wasteful number, since it uses less digits than its factorization.

911222148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244907 (or 1244905 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 911222148 is about 30186.4563670531. The cubic root of 911222148 is about 969.4857329956.

The spelling of 911222148 in words is "nine hundred eleven million, two hundred twenty-two thousand, one hundred forty-eight".